Abstract:
We present a general algorithm based on the concept of form-invariance which can be used for generating phantom cosmologies. It involves linear transformations between the kinetic energy and the potential of the scalar field, and transforms solutions of the Einstein-Klein-Gordon equations which preserve the weak energy condition into others which violate it, while keeping the energy density of the field positive. Several known solutions representing phantom cosmologies are unified by this procedure. Using the general algorithm we obtain those solutions and show the relations between them. In addition, the scale factors of the product and seed solutions are related by a generalization of the well-known a → a-1 duality. © World Scientific Publishing Company.
Registro:
Documento: |
Artículo
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Título: | Unified phantom cosmologies |
Autor: | Chimento, L.P.; Lazkoz, R. |
Filiación: | Dpto. de Física, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón I, 1428 Buenos Aires, Argentina Fisika Teorikoa, Zientzia Eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644 Posta Kutxatila, 48080 Bilbao, Spain
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Palabras clave: | Duality; Phantom fields; Symmetry transformations |
Año: | 2005
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Volumen: | 14
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Número: | 3-4
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Página de inicio: | 587
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Página de fin: | 598
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DOI: |
http://dx.doi.org/10.1142/S021827180500616X |
Título revista: | International Journal of Modern Physics D
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Título revista abreviado: | Int. J. Mod. Phys. D
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ISSN: | 02182718
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02182718_v14_n3-4_p587_Chimento |
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Citas:
---------- APA ----------
Chimento, L.P. & Lazkoz, R.
(2005)
. Unified phantom cosmologies. International Journal of Modern Physics D, 14(3-4), 587-598.
http://dx.doi.org/10.1142/S021827180500616X---------- CHICAGO ----------
Chimento, L.P., Lazkoz, R.
"Unified phantom cosmologies"
. International Journal of Modern Physics D 14, no. 3-4
(2005) : 587-598.
http://dx.doi.org/10.1142/S021827180500616X---------- MLA ----------
Chimento, L.P., Lazkoz, R.
"Unified phantom cosmologies"
. International Journal of Modern Physics D, vol. 14, no. 3-4, 2005, pp. 587-598.
http://dx.doi.org/10.1142/S021827180500616X---------- VANCOUVER ----------
Chimento, L.P., Lazkoz, R. Unified phantom cosmologies. Int. J. Mod. Phys. D. 2005;14(3-4):587-598.
http://dx.doi.org/10.1142/S021827180500616X